xnu-792.6.61.tar.gz

[apple/xnu.git] / osfmk / vm / vm_pageout.h

diff --git a/osfmk/vm/vm_pageout.h b/osfmk/vm/vm_pageout.h
index 0d3fa62fbf426851203ca93b88fd87f301152d9c..72f7549ce17c442e4437c73174f3586ecd17cf33 100644 (file)
--- a/osfmk/vm/vm_pageout.h
+++ b/osfmk/vm/vm_pageout.h
@@ -1,24 +1,21 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_HEADER_START@
  * 

- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.

  * 
  * 

- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.

  * 
  * @APPLE_LICENSE_HEADER_END@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -63,27 +60,34 @@
 #ifndef        _VM_VM_PAGEOUT_H_
 #define _VM_VM_PAGEOUT_H_
 
 #ifndef        _VM_VM_PAGEOUT_H_
 #define _VM_VM_PAGEOUT_H_
 

+#ifdef KERNEL_PRIVATE
+
+#include <mach/mach_types.h>

 #include <mach/boolean.h>
 #include <mach/machine/vm_types.h>
 #include <mach/boolean.h>
 #include <mach/machine/vm_types.h>

-#include <vm/vm_object.h>
-#include <vm/vm_page.h>
+#include <mach/memory_object_types.h>

 
 

+#include <kern/kern_types.h>
+#include <kern/lock.h>

 
 

+extern kern_return_t vm_map_create_upl(
+       vm_map_t                map,
+       vm_map_address_t        offset,
+       upl_size_t              *upl_size,
+       upl_t                   *upl,
+       upl_page_info_array_t   page_list,
+       unsigned int            *count,
+       int                     *flags);

 
 

+#ifdef MACH_KERNEL_PRIVATE
+
+#include <vm/vm_page.h>

 
 extern unsigned int    vm_pageout_scan_event_counter;
 extern unsigned int    vm_zf_count;
 
 /*
 
 extern unsigned int    vm_pageout_scan_event_counter;
 extern unsigned int    vm_zf_count;
 
 /*

- *     The following ifdef only exists because XMM must (currently)
- *     be given a page at a time.  This should be removed
- *     in the future.
- */
-#define        DATA_WRITE_MAX  16
-#define        POINTER_T(copy) (pointer_t)(copy)
-
-/*
- *     Exported routines.
+ *     Routines exported to Mach.

  */
 extern void            vm_pageout(void);
 
  */
 extern void            vm_pageout(void);
 


@@ -120,10 +124,7 @@ extern void                vm_pageclean_copy(
 
 /* UPL exported routines and structures */
 
 
 /* UPL exported routines and structures */
 

-#define UPL_COMPOSITE_PAGE_LIST_MAX 16
-
-
-#define upl_lock_init(object)  mutex_init(&(object)->Lock, ETAP_VM_OBJ)
+#define upl_lock_init(object)  mutex_init(&(object)->Lock, 0)

 #define upl_lock(object)       mutex_lock(&(object)->Lock)
 #define upl_unlock(object)     mutex_unlock(&(object)->Lock)
 
 #define upl_lock(object)       mutex_lock(&(object)->Lock)
 #define upl_unlock(object)     mutex_unlock(&(object)->Lock)
 


@@ -136,19 +137,16 @@ struct upl {
        int             flags;
        vm_object_t     src_object; /* object derived from */
        vm_object_offset_t offset;
        int             flags;
        vm_object_t     src_object; /* object derived from */
        vm_object_offset_t offset;

-       vm_size_t       size;       /* size in bytes of the address space */
+       upl_size_t      size;       /* size in bytes of the address space */

        vm_offset_t     kaddr;      /* secondary mapping in kernel */
        vm_object_t     map_object;
        vm_offset_t     kaddr;      /* secondary mapping in kernel */
        vm_object_t     map_object;

-#ifdef UBC_DEBUG
+#ifdef UPL_DEBUG

        unsigned int    ubc_alias1;
        unsigned int    ubc_alias2;
        queue_chain_t   uplq;       /* List of outstanding upls on an obj */
        unsigned int    ubc_alias1;
        unsigned int    ubc_alias2;
        queue_chain_t   uplq;       /* List of outstanding upls on an obj */

-#endif /* UBC_DEBUG */
-
+#endif /* UPL_DEBUG */

 };
 
 };
 

-
-

 /* upl struct flags */
 #define UPL_PAGE_LIST_MAPPED   0x1
 #define UPL_KERNEL_MAPPED      0x2
 /* upl struct flags */
 #define UPL_PAGE_LIST_MAPPED   0x1
 #define UPL_KERNEL_MAPPED      0x2


@@ -160,10 +158,8 @@ struct upl {
 #define UPL_PAGEOUT            0x80
 #define UPL_LITE               0x100
 #define UPL_IO_WIRE            0x200
 #define UPL_PAGEOUT            0x80
 #define UPL_LITE               0x100
 #define UPL_IO_WIRE            0x200

-
-#define        UPL_PAGE_TICKET_MASK    0xF00
-#define UPL_PAGE_TICKET_SHIFT  8
-
+#define UPL_ACCESS_BLOCKED     0x400
+#define UPL_ENCRYPTED          0x800

 
 
 /* flags for upl_create flags parameter */
 
 
 /* flags for upl_create flags parameter */


@@ -171,11 +167,100 @@ struct upl {
 #define UPL_CREATE_INTERNAL    0x1
 #define UPL_CREATE_LITE                0x2
 
 #define UPL_CREATE_INTERNAL    0x1
 #define UPL_CREATE_LITE                0x2
 

-
+extern kern_return_t vm_object_iopl_request(
+       vm_object_t             object,
+       vm_object_offset_t      offset,
+       upl_size_t              size,
+       upl_t                   *upl_ptr,
+       upl_page_info_array_t   user_page_list,
+       unsigned int            *page_list_count,
+       int                     cntrl_flags);
+
+extern kern_return_t vm_object_super_upl_request(
+       vm_object_t             object,
+       vm_object_offset_t      offset,
+       upl_size_t              size,
+       upl_size_t              super_cluster,
+       upl_t                   *upl,
+       upl_page_info_t         *user_page_list,
+       unsigned int            *page_list_count,
+       int                     cntrl_flags);
+
+/* should be just a regular vm_map_enter() */
+extern kern_return_t vm_map_enter_upl(
+       vm_map_t                map, 
+       upl_t                   upl, 
+       vm_map_offset_t         *dst_addr);
+
+/* should be just a regular vm_map_remove() */
+extern kern_return_t vm_map_remove_upl(
+       vm_map_t                map, 
+       upl_t                   upl);
+
+#ifdef UPL_DEBUG
+extern kern_return_t  upl_ubc_alias_set(
+       upl_t upl,
+       unsigned int alias1,
+       unsigned int alias2);
+extern int  upl_ubc_alias_get(
+       upl_t upl,
+       unsigned int * al,
+       unsigned int * al2);
+#endif /* UPL_DEBUG */

 
 /* wired  page list structure */
 typedef unsigned long *wpl_array_t;
 
 
 /* wired  page list structure */
 typedef unsigned long *wpl_array_t;
 

+extern void vm_page_free_list(
+       register vm_page_t      mem);

         
         

+extern void vm_page_free_reserve(int pages);
+
+extern void vm_pageout_throttle_down(vm_page_t page);
+extern void vm_pageout_throttle_up(vm_page_t page);
+
+/*
+ * ENCRYPTED SWAP:
+ */
+extern void upl_encrypt(
+       upl_t                   upl,
+       upl_offset_t            crypt_offset,
+       upl_size_t              crypt_size);
+extern void vm_page_encrypt(
+       vm_page_t               page,
+       vm_map_offset_t         kernel_map_offset);
+extern boolean_t vm_pages_encrypted; /* are there encrypted pages ? */
+extern void vm_page_decrypt(
+       vm_page_t               page,
+       vm_map_offset_t         kernel_map_offset);
+extern kern_return_t vm_paging_map_object(
+       vm_map_offset_t         *address,
+       vm_page_t               page,
+       vm_object_t             object,
+       vm_object_offset_t      offset,
+       vm_map_size_t           *size);
+extern void vm_paging_unmap_object(
+       vm_object_t             object,
+       vm_map_offset_t         start,
+       vm_map_offset_t         end);
+decl_simple_lock_data(extern, vm_paging_lock)
+
+/*
+ * Backing store throttle when BS is exhausted
+ */
+extern unsigned int    vm_backing_store_low;
+
+#endif  /* MACH_KERNEL_PRIVATE */
+
+extern void vm_countdirtypages(void);
+
+extern void vm_backing_store_disable(
+                       boolean_t       suspend);
+
+extern kern_return_t upl_transpose(
+       upl_t   upl1,
+       upl_t   upl2);
+
+#endif /* KERNEL_PRIVATE */

 
 #endif /* _VM_VM_PAGEOUT_H_ */
 
 #endif /* _VM_VM_PAGEOUT_H_ */